Is my file uploaded when converting DOCX to PDF?

No. The conversion runs entirely in your browser. The file never leaves your device, there is no server to upload to, and the page works offline once loaded.

Is DOCX to PDF conversion free?

Yes, with no account, no watermark and no file limit per day. frogConvert is open source and there is no server cost to recover, because your device does the work.

How large a file can I convert?

Up to 2 GB for a single file, 500 MB total per batch, and 300 files at once. The practical limit is your device's memory, since everything is processed locally.

Convert DOCX to PDF

Renders a Word document to fixed pages so it looks identical wherever it opens, and can no longer be casually edited.

Convert DOCX to PDF →

Runs on: a 3-step chain of local converters
Steps: 3 steps, chained automatically
Input: .docx · application/vnd.openxmlformats-officedocument.wordprocessingml.document
Output: .pdf · application/pdf
Uploads: None. The file never leaves your device.

What to expect

Faithful output needs LibreOffice installed locally; frogConvert calls it and never uploads the file. Without it, slide layouts, images and formatting are lost.

Why convert DOCX without uploading

Most online converters take your file, send it to their servers, convert it there and hand back a download link. That means your document sits on someone else's disk, subject to their retention policy and their breaches. It also means you cannot use them offline, and cannot use them at all for anything confidential.

frogConvert does the conversion in the page itself, with the conversion engines compiled to WebAssembly. There is no upload step because there is no server. You can disconnect from the network and it still works.

About the formats

DOCX

Microsoft Word's format since 2007, a ZIP archive of XML parts. It carries styles, tracked changes and comments, which is why converting it to anything flatter loses structure rather than just formatting. More about DOCX files.

PDF

Portable Document Format fixes text, fonts and images to an exact page layout, so a PDF looks the same everywhere it opens. That fidelity is also why it resists editing: a PDF stores positioned glyphs, not paragraphs. More about PDF files.

Common questions

Is my file uploaded when converting DOCX to PDF?: No. The conversion runs entirely in your browser. The file never leaves your device, there is no server to upload to, and the page works offline once loaded.
Is DOCX to PDF conversion free?: Yes, with no account, no watermark and no file limit per day. frogConvert is open source and there is no server cost to recover, because your device does the work.
How large a file can I convert?: Up to 2 GB for a single file, 500 MB total per batch, and 300 files at once. The practical limit is your device's memory, since everything is processed locally.
What is lost converting DOCX to PDF?: Faithful output needs LibreOffice installed locally; frogConvert calls it and never uploads the file. Without it, slide layouts, images and formatting are lost.